Trolley



PMBLD FEB. z, i904. J. KELLY. TROLLEY. APPLICATION FILED JULY 11, 1903.

N0 MODEL.

IIIHLEW UNITED STATESV Patented February 2, 1904.

PATENT OFFICE.

JAMES KELLY, OF PITTSBURG, PENNSYLVANIA, ASSIGNOR OE ONE-THIRD TO JAMESCROAK, OF PITTSBURG, PENNSYLVANIA.

TROLLEY.

SPECIFICATION forming part of Letters Patent No. 751,298, dated February2, 1904.

I Application filed July 11, 1903. Serial No. 165,086. (No model.)

To all whom it may concern:

Be it known that I, J AMES KELLY, a citizen of the United States ofAmerica, residing at Pittsburg, in the county of Allegheny and State ofPennsylvania, have invented certain new and useful ImprovementsinTrolleys, of which the following' is a specification, reference beinghad therein to the accompanying drawings.

This invention relates to certain new and useful improvements introlleys; andthe obare actuated in event of the trolley-wheel leavingthe wire, whereby to throw the same upwardly to a position to guardv ateach side of the wheel, whereby one of the guards or nders will engagewith the wire andcause the wheel to be again conducted into engagementtherewith. Means is provided whereby when these guards or finders are intheir extended or guarding position the projecting arms thereof maysafely pass crossover-wires or otherl obstructions without damage to thesame or to the arms. .y All of thevabove construction will be-here-'inafter more fully described, and specifically pointed out in theclaims, and in describing the invention in detail reference is had tothe.

accompanying drawings, forming a part of-this speciiicatlon, and whereinlike numerals of reference indicate like parts throughoutthev severalviews, in which- Figure 1 is a central Vertical sectional view showingthe normal position of the wheels and the guards or Enders in full linesand in dotted lines the position of the parts when the wheel leaves thewire. Fig. 2 is a side elevation with the guards or finders removed.Fig. 3 is a side elevation of the trolley complete.

moved to the operative position.

drawings. lthey are forced to'position shown in dotted My inventioncomprises a main harp, which is rigid with the trolley-pole, and anauxiliary harp, which carries the trolley wheel and which hasverticalmovement in themain harp.

To put my invention into practice, I provide a main harp 1, which issecured in any secure manner to the trolley-pole,.the cheek-pieces ofsaid harp being provided with vertical slots 2, terminating at theirupper ends in guides 3, in which the bearings 1, which receive theextending ends of the axle 5, are journaled. The trolley-wheel 6 is freeto revolve independently of the axle 5, and this yaxle 5 carries at itsextending ends arms or cams 7,which act to throw the guards or iinderstothe elevated position, as will be hereinafter ,more fully explained.The auxiliary harp 8 .operates in the slotted cheek-piecesof the mainharp, this auxiliary harp carrying the bearings 4 for the axle or shaftof the trolley-wheel. At its lower end this auxiliary harpcarries astub-shaft 9, which extends into a tubular extension 10 on Vthe lowerend of the main harp, which tubular extension has a recess or boretherein to reshaft 9 between the lower end of the same and 4the plug 11is a spring 12, adapted upon'the trolley-Wheel 6 leaving thecurrent-wire 'to force the Yauxiliary harp to its elevated position,whereby the guards or finders are also The guards or finders compriseplates 14, rigidly secured to the cheek-pieces of the main harp.`I-Iin'ged or pivoted to the upper ends of these plates 14: is a leaf orstrap 15, to which are secured by means of the pin 16 the guards orfinders in position shown in full lines in Fig. 1 of the Upon thetrolley leaving the wire lines of said figure. In'order that the guardsor finders may readily pass the crossoverwires or other obstructions, Iprovide spring means which will normally .hold kthe guards or iinders inalinement with the leaf or strap 15, but will permit the swinging of thesame .on their pivot-pin 16 in order to pass the crossover-wire or otherobstruction. A convement form lof means 1s that of attaching a 17. Theseguards or iinders, together with the leaf or strap 15, are adapted tolie normally IOO spring 18 to the pin and have the other end of saidspring lying between two pins 19, carried by the guard or finder. Inorder to limit the movement which may be given to the guards or findersI provide a pin 2O in the leaf or strap 15, which will travel in thecut-away portion 21 provided therefor in the pivoted end of the guard orfinder. When the pin engages the shoulder on either end of the eutawayportion, the movement of the guard or finder will be arrested.

In Fig. 1 I show in full lines the normal position of the trolley whenit is in engagement with the current-wire 22. When in this position, theauxiliary harp is depressed, thus compressing the spring 12. Thebearings 4 are at the lower end of the guide-slots 3. In event of thetrolley leaving' the wire the upward pressure of the spring 12 serves toimmediately elevate the auxiliary harp and trolley-wheel 6, causing theangle-arms or cams 7 to move the guards or finders up to the positionshown in dotted lines in Fig. 1, thereby causing the current-wire to beengaged over the one or the other of the guards or finders and beconducted back into engagement with the trolley-wheel. Immediately onthe return of the current-wire into engagement with the wheel the latteris depressed to its normal position, carrying the arms or cams 7downwardly therewith and allowing the guards or finders to fall to theirnormal positionI It will be observed that while the guards or findersare in the elevated position should they come in contact with thecrossover-wire or other obstruction they will readily bend backward, dueto the pivoted connection, whereby to permit the ready passage thereof.Attention is directed to the fact that when the trolley is removed fromthe wire by means of the rope, which is always attached to thetrolley-pole, the auxiliary harp and the trolley-wheel, together withthe finders or guards, will assume the elevated position due to theaction of the spring 12 and that consequently when the trolley-wheel isto be placed in engagement with the wire the guards or finders are inthe elevated position, whereby to assist in the ready finding of thewire with the trolley-wheel, and as soon as the trolleywheel engages thewire the pressure forces the auxiliary harp to the normal depressedposition, allowing the guards or finders to also fall to their normalposition. It will thus be observed that the device will be of materialbenefit, not only to retain kthe trolley in engagement with the wirewhile the car is traveling, but will assist in the ready finding of thewire with the trolley-wheel when used in connection with cars where thetrolley is reversed at each end of the line.

It will be apparent that various changes I claim as new, and desire tosecure by Letters 1. In a trolley, the combination of a main harp havinga ferrule portion provided with a bore, 'said main harp having slots inits cheekpieces, of an auxiliary harp mounted in the main harp to movein said slotted cheek-pieces, a stub-shaft carried by the auxiliary harpand extending into the bore of the ferrule, aspring arranged beneathsaid stub-shaft within the bore, an axle or shaft mounted in theauxiliary harp with the trolley-wheel mounted thereon, annular arms orcams carried by the ends of said axle or shaft, and guards or findershinged to the main harp and adapted to be moved to the operativeposition by the engagement of the angular arms or cams, substantially asdescribed.

2. In a trolley, a main harp, an auxiliary harp operative vertically inthe main harp, a shaft or axle journaled in the auxiliary harp, atrolley-wheel carried thereby, straps hinged to the main harp at theupper end thereof, arms pivoted to the said straps, means for normallyholding said arms in alined position with the straps, and means adaptedon the trolley-wheel leaving the wire to elevate the auxiliary harp andmove the pivoted arms to the operative position, substantially asdescribed.

3. In a device ofthe character described, a main trolley-harp, anauxiliary harp mounted therein for movement independent thereof, atrolley-wheel carried by said last-named harp, straps hinged to the mainharp, guards pivoted upon said straps, means carried by said auxiliaryharp adapted to engage with said guards, and means for forcingsaidlast-named means into engagement with the guards, on the trolley-wheelleaving the current-wire, substantially as described.

4. In a trolley, a main harp, an auxiliary harp vertically movabletherein,a shaft mounted in the auxiliary harp, a trolley-wheel carriedthereby, guards having hinged connections with said main harp, springmeans for holding said guards in alined position with the main harp,cams carried by the said shaft adapted to engage and elevate saidguards, and means adapted to elevate said auxiliary harp on the trolleyleaving the wire, `substantially as described.

In testimony whereof I affix my signature in the presence of twowitnesses.

JAMES KELLY.

Witnesses:

A. M. WILSON, K. H. BUTLER.

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